package cn.com.self.apis.file.ueditor.upload;


import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import cn.com.self.apis.file.ueditor.PathFormat;
import cn.com.self.apis.file.ueditor.define.AppInfo;
import cn.com.self.apis.file.ueditor.define.BaseState;
import cn.com.self.apis.file.ueditor.define.FileType;
import cn.com.self.apis.file.ueditor.define.State;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;

public class BinaryUploader {

	 /**修改BinaryUploader类，解决其无法获得带字节流的request的问题
	  * @Description //TODO
	  * @return
	  **/
	public static final State save(HttpServletRequest request,
								   Map<String, Object> conf) {
	/*	FileItemStream fileStream = null;
		boolean isAjaxUpload = request.getHeader( "X_Requested_With" ) != null;
*/
		if (!ServletFileUpload.isMultipartContent(request)) {
			return new BaseState(false, AppInfo.NOT_MULTIPART_CONTENT);
		}
/*

		ServletFileUpload upload = new ServletFileUpload(
				new DiskFileItemFactory());

        if ( isAjaxUpload ) {
            upload.setHeaderEncoding( "UTF-8" );
        }

		try {
			FileItemIterator iterator = upload.getItemIterator(request);

			while (iterator.hasNext()) {
				fileStream = iterator.next();

				if (!fileStream.isFormField())
					break;
				fileStream = null;
			}

			if (fileStream == null) {
				return new BaseState(false, AppInfo.NOTFOUND_UPLOAD_DATA);
			}
*/
	try{
		/*MultipartHttpServletRequest获取request处理之后的字节流*/
		MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
		MultipartFile multipartFile = multipartRequest.getFile(conf.get("fieldName").toString());
		if (multipartFile == null) {
			return new BaseState(false, AppInfo.NOTFOUND_UPLOAD_DATA);
		}

			String savePath = (String) conf.get("savePath");
			//String originFileName = fileStream.getName();
		String originFileName = multipartFile.getOriginalFilename();
		String suffix = FileType.getSuffixByFilename(originFileName);

			originFileName = originFileName.substring(0,
					originFileName.length() - suffix.length());
			savePath = savePath + suffix;

			long maxSize = ((Long) conf.get("maxSize")).longValue();

			if (!validType(suffix, (String[]) conf.get("allowFiles"))) {
				return new BaseState(false, AppInfo.NOT_ALLOW_FILE_TYPE);
			}

			savePath = PathFormat.parse(savePath, originFileName);

			//String physicalPath = (String) conf.get("rootPath") + savePath;
			String basePath = (String) conf.get("basePath");
			String physicalPath = basePath+ savePath;
			System.out.print("富文本图片上传路径==="+physicalPath);
			//InputStream is = fileStream.openStream();
		InputStream is = multipartFile.getInputStream();

		State storageState = StorageManager.saveFileByInputStream(is,
					physicalPath, maxSize);
			is.close();

			if (storageState.isSuccess()) {
				storageState.putInfo("url", PathFormat.format(savePath));
				storageState.putInfo("type", suffix);
				storageState.putInfo("original", originFileName + suffix);
			}

			return storageState;

	//		} catch (FileUploadException e) {
	//			return new BaseState(false, AppInfo.PARSE_REQUEST_ERROR);
		} catch (IOException e) {

		}
			return new BaseState(false, AppInfo.IO_ERROR);
	}



	private static boolean validType(String type, String[] allowTypes) {
		List<String> list = Arrays.asList(allowTypes);

		return list.contains(type);
	}
}
